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312 lines
9.2 KiB
312 lines
9.2 KiB
#ifndef _UAPI_ASM_GENERIC_SIGINFO_H |
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#define _UAPI_ASM_GENERIC_SIGINFO_H |
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#include <linux/compiler.h> |
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#include <linux/types.h> |
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typedef union sigval { |
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int sival_int; |
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void __user *sival_ptr; |
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} sigval_t; |
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/* |
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* This is the size (including padding) of the part of the |
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* struct siginfo that is before the union. |
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*/ |
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#ifndef __ARCH_SI_PREAMBLE_SIZE |
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#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int)) |
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#endif |
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#define SI_MAX_SIZE 128 |
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#ifndef SI_PAD_SIZE |
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#define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int)) |
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#endif |
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#ifndef __ARCH_SI_UID_T |
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#define __ARCH_SI_UID_T __kernel_uid32_t |
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#endif |
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/* |
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* The default "si_band" type is "long", as specified by POSIX. |
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* However, some architectures want to override this to "int" |
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* for historical compatibility reasons, so we allow that. |
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*/ |
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#ifndef __ARCH_SI_BAND_T |
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#define __ARCH_SI_BAND_T long |
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#endif |
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#ifndef __ARCH_SI_CLOCK_T |
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#define __ARCH_SI_CLOCK_T __kernel_clock_t |
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#endif |
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#ifndef __ARCH_SI_ATTRIBUTES |
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#define __ARCH_SI_ATTRIBUTES |
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#endif |
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#ifndef HAVE_ARCH_SIGINFO_T |
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typedef struct siginfo { |
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int si_signo; |
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int si_errno; |
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int si_code; |
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union { |
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int _pad[SI_PAD_SIZE]; |
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/* kill() */ |
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struct { |
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__kernel_pid_t _pid; /* sender's pid */ |
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__ARCH_SI_UID_T _uid; /* sender's uid */ |
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} _kill; |
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/* POSIX.1b timers */ |
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struct { |
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__kernel_timer_t _tid; /* timer id */ |
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int _overrun; /* overrun count */ |
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char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)]; |
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sigval_t _sigval; /* same as below */ |
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int _sys_private; /* not to be passed to user */ |
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} _timer; |
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/* POSIX.1b signals */ |
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struct { |
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__kernel_pid_t _pid; /* sender's pid */ |
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__ARCH_SI_UID_T _uid; /* sender's uid */ |
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sigval_t _sigval; |
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} _rt; |
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/* SIGCHLD */ |
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struct { |
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__kernel_pid_t _pid; /* which child */ |
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__ARCH_SI_UID_T _uid; /* sender's uid */ |
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int _status; /* exit code */ |
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__ARCH_SI_CLOCK_T _utime; |
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__ARCH_SI_CLOCK_T _stime; |
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} _sigchld; |
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/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ |
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struct { |
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void __user *_addr; /* faulting insn/memory ref. */ |
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#ifdef __ARCH_SI_TRAPNO |
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int _trapno; /* TRAP # which caused the signal */ |
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#endif |
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short _addr_lsb; /* LSB of the reported address */ |
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union { |
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/* used when si_code=SEGV_BNDERR */ |
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struct { |
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void __user *_lower; |
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void __user *_upper; |
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} _addr_bnd; |
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/* used when si_code=SEGV_PKUERR */ |
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__u32 _pkey; |
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}; |
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} _sigfault; |
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/* SIGPOLL */ |
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struct { |
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__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ |
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int _fd; |
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} _sigpoll; |
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/* SIGSYS */ |
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struct { |
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void __user *_call_addr; /* calling user insn */ |
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int _syscall; /* triggering system call number */ |
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unsigned int _arch; /* AUDIT_ARCH_* of syscall */ |
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} _sigsys; |
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} _sifields; |
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} __ARCH_SI_ATTRIBUTES siginfo_t; |
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/* If the arch shares siginfo, then it has SIGSYS. */ |
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#define __ARCH_SIGSYS |
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#endif |
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/* |
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* How these fields are to be accessed. |
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*/ |
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#define si_pid _sifields._kill._pid |
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#define si_uid _sifields._kill._uid |
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#define si_tid _sifields._timer._tid |
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#define si_overrun _sifields._timer._overrun |
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#define si_sys_private _sifields._timer._sys_private |
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#define si_status _sifields._sigchld._status |
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#define si_utime _sifields._sigchld._utime |
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#define si_stime _sifields._sigchld._stime |
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#define si_value _sifields._rt._sigval |
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#define si_int _sifields._rt._sigval.sival_int |
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#define si_ptr _sifields._rt._sigval.sival_ptr |
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#define si_addr _sifields._sigfault._addr |
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#ifdef __ARCH_SI_TRAPNO |
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#define si_trapno _sifields._sigfault._trapno |
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#endif |
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#define si_addr_lsb _sifields._sigfault._addr_lsb |
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#define si_lower _sifields._sigfault._addr_bnd._lower |
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#define si_upper _sifields._sigfault._addr_bnd._upper |
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#define si_pkey _sifields._sigfault._pkey |
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#define si_band _sifields._sigpoll._band |
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#define si_fd _sifields._sigpoll._fd |
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#ifdef __ARCH_SIGSYS |
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#define si_call_addr _sifields._sigsys._call_addr |
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#define si_syscall _sifields._sigsys._syscall |
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#define si_arch _sifields._sigsys._arch |
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#endif |
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#ifndef __KERNEL__ |
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#define __SI_KILL 0 |
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#define __SI_TIMER 0 |
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#define __SI_POLL 0 |
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#define __SI_FAULT 0 |
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#define __SI_CHLD 0 |
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#define __SI_RT 0 |
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#define __SI_MESGQ 0 |
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#define __SI_SYS 0 |
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#define __SI_CODE(T,N) (N) |
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#endif |
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/* |
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* si_code values |
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* Digital reserves positive values for kernel-generated signals. |
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*/ |
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#define SI_USER 0 /* sent by kill, sigsend, raise */ |
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#define SI_KERNEL 0x80 /* sent by the kernel from somewhere */ |
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#define SI_QUEUE -1 /* sent by sigqueue */ |
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#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */ |
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#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */ |
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#define SI_ASYNCIO -4 /* sent by AIO completion */ |
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#define SI_SIGIO -5 /* sent by queued SIGIO */ |
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#define SI_TKILL -6 /* sent by tkill system call */ |
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#define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */ |
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#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0) |
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#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0) |
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/* |
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* SIGILL si_codes |
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*/ |
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#define ILL_ILLOPC (__SI_FAULT|1) /* illegal opcode */ |
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#define ILL_ILLOPN (__SI_FAULT|2) /* illegal operand */ |
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#define ILL_ILLADR (__SI_FAULT|3) /* illegal addressing mode */ |
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#define ILL_ILLTRP (__SI_FAULT|4) /* illegal trap */ |
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#define ILL_PRVOPC (__SI_FAULT|5) /* privileged opcode */ |
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#define ILL_PRVREG (__SI_FAULT|6) /* privileged register */ |
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#define ILL_COPROC (__SI_FAULT|7) /* coprocessor error */ |
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#define ILL_BADSTK (__SI_FAULT|8) /* internal stack error */ |
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#define NSIGILL 8 |
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/* |
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* SIGFPE si_codes |
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*/ |
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#define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */ |
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#define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */ |
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#define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */ |
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#define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */ |
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#define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */ |
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#define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */ |
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#define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */ |
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#define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */ |
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#define NSIGFPE 8 |
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/* |
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* SIGSEGV si_codes |
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*/ |
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#define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */ |
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#define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */ |
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#define SEGV_BNDERR (__SI_FAULT|3) /* failed address bound checks */ |
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#define SEGV_PKUERR (__SI_FAULT|4) /* failed protection key checks */ |
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#define NSIGSEGV 4 |
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/* |
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* SIGBUS si_codes |
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*/ |
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#define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */ |
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#define BUS_ADRERR (__SI_FAULT|2) /* non-existent physical address */ |
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#define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */ |
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/* hardware memory error consumed on a machine check: action required */ |
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#define BUS_MCEERR_AR (__SI_FAULT|4) |
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/* hardware memory error detected in process but not consumed: action optional*/ |
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#define BUS_MCEERR_AO (__SI_FAULT|5) |
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#define NSIGBUS 5 |
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/* |
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* SIGTRAP si_codes |
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*/ |
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#define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */ |
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#define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */ |
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#define TRAP_BRANCH (__SI_FAULT|3) /* process taken branch trap */ |
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#define TRAP_HWBKPT (__SI_FAULT|4) /* hardware breakpoint/watchpoint */ |
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#define NSIGTRAP 4 |
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/* |
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* SIGCHLD si_codes |
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*/ |
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#define CLD_EXITED (__SI_CHLD|1) /* child has exited */ |
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#define CLD_KILLED (__SI_CHLD|2) /* child was killed */ |
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#define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */ |
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#define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */ |
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#define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */ |
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#define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */ |
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#define NSIGCHLD 6 |
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/* |
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* SIGPOLL si_codes |
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*/ |
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#define POLL_IN (__SI_POLL|1) /* data input available */ |
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#define POLL_OUT (__SI_POLL|2) /* output buffers available */ |
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#define POLL_MSG (__SI_POLL|3) /* input message available */ |
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#define POLL_ERR (__SI_POLL|4) /* i/o error */ |
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#define POLL_PRI (__SI_POLL|5) /* high priority input available */ |
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#define POLL_HUP (__SI_POLL|6) /* device disconnected */ |
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#define NSIGPOLL 6 |
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/* |
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* SIGSYS si_codes |
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*/ |
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#define SYS_SECCOMP (__SI_SYS|1) /* seccomp triggered */ |
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#define NSIGSYS 1 |
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/* |
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* sigevent definitions |
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* |
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* It seems likely that SIGEV_THREAD will have to be handled from |
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* userspace, libpthread transmuting it to SIGEV_SIGNAL, which the |
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* thread manager then catches and does the appropriate nonsense. |
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* However, everything is written out here so as to not get lost. |
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*/ |
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#define SIGEV_SIGNAL 0 /* notify via signal */ |
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#define SIGEV_NONE 1 /* other notification: meaningless */ |
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#define SIGEV_THREAD 2 /* deliver via thread creation */ |
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#define SIGEV_THREAD_ID 4 /* deliver to thread */ |
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/* |
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* This works because the alignment is ok on all current architectures |
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* but we leave open this being overridden in the future |
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*/ |
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#ifndef __ARCH_SIGEV_PREAMBLE_SIZE |
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#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t)) |
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#endif |
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#define SIGEV_MAX_SIZE 64 |
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#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \ |
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/ sizeof(int)) |
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typedef struct sigevent { |
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sigval_t sigev_value; |
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int sigev_signo; |
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int sigev_notify; |
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union { |
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int _pad[SIGEV_PAD_SIZE]; |
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int _tid; |
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struct { |
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void (*_function)(sigval_t); |
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void *_attribute; /* really pthread_attr_t */ |
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} _sigev_thread; |
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} _sigev_un; |
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} sigevent_t; |
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#define sigev_notify_function _sigev_un._sigev_thread._function |
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#define sigev_notify_attributes _sigev_un._sigev_thread._attribute |
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#define sigev_notify_thread_id _sigev_un._tid |
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#endif /* _UAPI_ASM_GENERIC_SIGINFO_H */
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